Frog 48 Kids Bike
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Code: FROG-48
The Frog 48 has a lightweight aluminium frame and high quality frame and forks, great for the improving or cyclists growing in confidence. Suitable for age range 4-5 years.

The Frog 48 has a lightweight aluminium frame and high quality frame and forks, great for the improving or cyclists growing in confidence. It has easy to grip Tektro brakes with adjustable levers for smaller hands and easily adjusted saddle height.  Its hybrid tyres are suitable for road and off-road use. The locking headset means the handlebars have a steering limiter, which is safer for learners.

Comes with a bell, reflectors and mudguards as standard. Suitable for minimum inside leg of 48cm (around 4-5 years old), it has 16" wheels. Free 5 year warranty available on the frame and forks, 2 years on all other parts.


Approximate Age:

  • 4-5 (please check the sizing guide)


  • 6.9 kg


  • Aluminium Fork


  • Aluminium 9.5" Frog 48 Frame

Wheel Size:

  • 16"

Head Set:

  • Locking headset, 27mm

Bottom Bracket:

  • 116mm Sealed Bottom Bracket

Crank Set:

  • Aluminium 114mm Black

Chain Ring:

  • Steel 34 Teeth

Chain Guard:

  • Integral Black Chain Guard


  • Tektro C310 Aluminium V Brake Black

Brake Levers:

  • Tektro Aluminium JL352-RS V Brake Lever Black

Length of top tube:

  • 374mm (horizontal distance from seat post to stem: 393mm)


  • Frog Bikes Aluminium 35mm Stem


  • Frog Bikes Aluminium Little Handlebars Width 440mm


  • Frog Bikes Specific Slim Grips


  • Frog Bikes Saddle Size:201*136mm, Black, adjustable rails for better fit

Seat Post:

  • Aluminium 200mm, 27.2mm wide, Quick Release


  • Plastic with Ball Bearings and Reflectors


  • Aluminium 16" x 1.5" 20 holes Black(Weight:240g)


  • Aluminium 20 holes


  • Kenda 16" x 1.5" hybrid tyres


  • Kenda 16" x 1.5" with Schrader Valves

Right Hand Gear Shifter:

  • Single Speed

Free Wheel:

  • 16 T Copper

Front Reflector:

  • White

Rear Reflector:

  • Red


  • Plastic Mudguards front and rear
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Free shipping on this item to United States
$ 37.50
General information about our shipping

How to choose a Child's Bike

In contrast to many children's bikes, Frog bikes are sized by the length rather than age, as this is the most reliable way of getting the right size of bike for each child. Age alone isn't a reliable measure as there is a large spread of "normal" leg lengths & heights for age.

Please take the time to measure the rider's inside leg. It's easy to measure:

  1. Stand the child in socks against wall
  2. Place a small book between their legs, as high as is comfortable
  3. Ask the child to move away and measure from the top of the book to the floor

Once you have measured the inside leg, use this table to find the right size bike for your child. Note we give the MINIMUM inside leg length for each bike, with the saddle at it's lowest setting. At this height, the child will safely be able to get their feet to the ground. Don't worry - Frog Bikes have long seat posts, so the saddle can be raised a long way as the rider grows.

 BikeMinimum inside
leg (cm)
Approx ageWheel SizeFrame Size
Frog 43433-414″9″
Frog 48484-516″9.5″
Frog 52525-620″10″
Frog 55556-720″11″
Frog 62628-1024″12″
Frog 696910-1226″14″
Frog 737312-1426″16″
Frog Road 58586-720″11″
Frog Road 67678-1224″14″
Frog Road 707011-1426″17″

Of course all children have different length arms and torsos too, so to ensure a comfortable riding position, the handlebar height can be tailored, and saddles can be slid back and forwards on their rails.(These adjustments are easy to do and just need an allen key; instructions are in the manual that comes with each bike.

This is the best bike for my child. Lightweight, high quality and stylish. It's hard to imagine something better.
Excellent bike: good built with high quality components. Came packed very well - no chance for a damage. My son (3,5 y.o.) can ride it from 1st time due to low weight and good frame geometry (it should be mentioned he used runbike before it). Fast shipment to Russia - 2 weeks only, usually lead time from Europe takes 1 month or something... Happy with this purchase )) Thank you!
I ordered this bike due to a review in a e-shopping blog and I must say I am fully satisfied with it. I have a 4.5 years old son, before we practised just the runner bike, so he already could keep balance on speed etc .. But still I couldn't believe when he climbed on the Frog 48 and JUST started rolling the pedals and going ahead 0_0 couldnt expect learning the kid riding the bike will be so easy .. That is also thanks to Frog 48 is very lightweight bike , you ride it and not afraid , also rear and front brakes are well done and easy to use .. Talking about shipping everything was almost OK, the package arrived to Helsinki from the UK quite fast but then local delivery service needed a week for final delivery .. The bike is very easy to assemble , it took may be an hour. So I am very satisfied with the bike, thanks !!!
Great bike! My daughter has previously riding on balance bike. After we received our new Frog 48 it took her 5 minutes to learn how to ride on bike with pedals. Weight of the bike is very very low. In opposite to other bikes she is able to easily pick it up from the ground or drive uphill. Quality is very high, every element is made very neatly. In the package there was even small bottle of lacquer that can be used if you make some scratches on the bike. And finally there was very fast delivery to Poland. Big thanks to
This is a lovely bike. It is very bright and has a bell, which my daughter thinks is great. She's 5 and has never been confident at cycling or having a go. We took the pedals off and lowered the seat right down and she has really enjoyed herself scooting along and after a few days has got her confidence up to cycle with the pedals. She is doing great (though going round in circles). Thank you. Prompt delivery and communications as well.